Oh, I agree that looks horrible. It would be difficult to restore back.
Beocenter 4600 and Beocenter 7002 use different tonearms. The one in your photo could be from a Beocenter 4600. Which one do you need, – I could look in the dungeons for the right part.
Yes,different lenght, realignament with CNC pivot to spindle and PROACTOR calculatore ,after elettronics restore in turntable with magnesium tonearm i make this because to much USD dollar for original cartridge in this case TP 4 AUDIOTECHNICA eliptical diamond , Osvaldo